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Finding the Fourth Proportional to 79,616.93, 109,873.13 and 43,808.85

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Solution

The fourth proportional to 79,616.93, 109,873.13 and 43,808.85 is: 60,457.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,616.93 : 109,873.13 = 43,808.85 : x
  2. Step 2: Convert to fraction form
    79,616.93/109,873.13 = 43,808.85/x
  3. Step 3: Cross multiply
    79,616.93x = 109,873.13 × 43,808.85
  4. Step 4: Simplify right side
    79,616.93x = 4,813,415,252.16
  5. Step 5: Solve for x
    x = 4,813,415,252.16/79,616.93
  6. Step 6: Final answer
    x = 60,457.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.